Abstract: The present invention relates to a ventilating and evacuating valve for fluid-guiding conduit pipes or braces. The valve includes a valve mechanism and a floating body which acts on the valve mechanism. The valve mechanism includes a valve body which can be moved into different opening or closing positions in order to open and close a valve outlet; a diaphragm cup; and a roll diaphragm which is arranged between the valve body and the diaphragm cup and can come to rest in different opening or closing positions over aperture openings of the valve body. The valve also includes a channelling mechanism which is configured to guide an evacuating flow past the valve mechanism.

Abstract: The present invention relates to a ventilating and evacuating valve for fluid-guiding conduit pipes and/or braces, comprising a valve mechanism (2) and a floating body (1) which acts on the valve mechanism (2), wherein the valve mechanism (2) comprises: a valve body (4) which can be moved into different opening and/or closing positions in order to open and close a valve outlet (3); a diaphragm cup (5); and a roll diaphragm (6) which is arranged between the valve body (4) and the diaphragm cup (5) and can come to rest in different opening and/or closing positions over aperture openings (7) of the valve body (4), wherein the valve also comprises a channelling means (8) which is configured to guide an evacuating flow past the valve mechanism (2).

Abstract: The invention relates to an airing and venting valve for pipes and fittings carrying fluid, comprising a substantially cup-shaped valve body becoming smaller in cross-section towards the bottom for closing and opening a valve outlet, with a seal cup co-operating with a float of the valve, and a cup seal which is disposed between the valve body and seal cup and is able to move into different closing and opening positions lying across passage orifices of the valve body. By virtue of one aspect of the invention, the seal cup has an internal contour which becomes wider towards the top conforming to the external contour of the valve body. By virtue of another aspect, the valve body is disposed so that it is able to move against its seat at the valve outlet so that it can release and close a passage in the region of the valve body seat.

Abstract: A casing for a ventilating and evacuating valve for pipe lines and/or fittings is provided. The casing comprises a hollow body, a connecting section and a ventilating and evacuating section. At least the hollow body of the casing is formed substantially of aluminium.

Abstract: The invention relates to an airing and venting valve for pipes and fittings carrying fluid, comprising a substantially cup-shaped valve body becoming smaller in cross-section towards the bottom for closing and opening a valve outlet, with a seal cup co-operating with a float of the valve, and a cup seal which is disposed between the valve body and seal cup and is able to move into different closing and opening positions lying across passage orifices of the valve body. By virtue of one aspect of the invention, the seal cup has an internal contour which becomes wider towards the top conforming to the external contour of the valve body. By virtue of another aspect, the valve body is disposed so that it is able to move against its seat at the valve outlet so that it can release and close a passage in the region of the valve body seat.